2022-2023 Audi e-tron GT Lane Departure Warning Fault TSB

Owners of 2022-2023 Audi e-tron GT and RS e-tron GT vehicles may encounter an instrument cluster message stating "Lane departure warning fault" when starting their vehicle. This message is typically accompanied by specific diagnostic trouble codes (DTCs) stored in the steering control unit, J500.

Audi Technical Service Bulletin (TSB) 2069614/2, which supersedes the previous TSB Group 48 number 23-38 dated March 7, 2023, provides important guidance for this condition. The TSB clarifies that these DTCs do not affect the functionality of the vehicle or its lane assist system and are unlikely to recur.

Symptoms

The primary symptom owners will notice is the instrument cluster displaying the message: "Lane departure warning fault". This warning appears when the vehicle is started, indicating a potential issue with the lane departure warning system.

Fault Codes / DTCs

When the "Lane departure warning fault" message appears, technicians performing a diagnostic scan will find specific DTCs stored in the J500 steering control unit (address 0044). These codes are:

| Code | Description | Symptom Code | | :--- | :---------- | | U13D500 | Function restriction, directional stabilization assistance | 15872 | | C135DF1 | Power steering control module does not implement request | 17920 |

Important Warnings

Audi TSB 2069614/2 provides critical information that owners and technicians must heed to avoid unnecessary repairs and costs:

• If only the DTCs U13D500 and C135DF1 are stored in address 0044, do not perform any repair work. The recommended action is to clear the DTCs and release the vehicle.
• The replacement of parts does not solve this issue. Attempting to replace components will not resolve the underlying condition that triggers these specific codes.
• Claims for replaced parts related to these DTCs will be subject to review, indicating that such repairs may not be covered under warranty if they are deemed unnecessary.

Technical Background

The technical background provided by Audi explains that the DTCs U13D500 and C135DF1, when stored in the J500 steering control unit, do not impact the actual functionality of the vehicle or the lane assist system. These codes are considered transient and are unlikely to reappear after being cleared. Therefore, for the specific condition of an "Audi e-tron GT lane departure warning fault" with these DTCs, no physical repair is required.

Owner Action

If you own a 2022-2023 Audi e-tron GT or RS e-tron GT and experience the "Lane departure warning fault" message, it is important to understand that this specific issue, when accompanied by DTCs U13D500 and C135DF1, does not require a repair. You should inform your Audi service center about Technical Service Bulletin 2069614/2. The correct procedure is for the technician to clear the fault codes from the J500 steering control unit and return the vehicle to you. This TSB is informational and does not fall under typical warranty claims for repairs, as no repair is needed.

Source: NHTSA ID: 10233536